Uploaded images gets bigger when resized via &w and &h parameters

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  daltonmatos · Member · Apr 22, 2009 at 11:18 pm

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  Hi,

  I uploaded some images and attached these images to a post. The original image is 642×410 and has ~11.8KBytes.
  The image’s url is: “http://daltonmatos.files.wordpress.com/2009/04/ls-simples.png”. When I GET this url I see that the returned response is correct:

  $ curl -I http://daltonmatos.files.wordpress.com/2009/04/ls-simples.png
  HTTP/1.1 200 OK
  Content-Type: image/png
  Content-Length: 11834

  Ok, the image returned has ~11.8KBytes

  But when I use the resize parameters &w and &h to rezise this image to a *smaller* one, the response is much bigger!

  $ curl -I “http://daltonmatos.files.wordpress.com/2009/04/ls-simples.png?w=540&h=410”

  HTTP/1.1 200 OK
  Content-Type: image/png
  Content-Length: 744637

  That’s a ~744KByte response!

  What I’m doing wrong? Am I using de resize parameters the wrong way?

  Thanks in advance.

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  panaghiotisadam · Member · Apr 24, 2009 at 3:55 pm

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  https://en.forums.wordpress.com/topic/downscaled-png-images-lack-compression?replies=2

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  daltonmatos · Member · Apr 24, 2009 at 6:20 pm

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  Thanks! it solves the problems.

  I’ll use gif’s or use always the image with its original size (I found a theme that is large enough).

  Thanks for the help!